<!DOCTYPE html>
<html>
<head>
	<title>demo</title>
</head>
<script type="text/javascript">
 window.onload = function(){
      var btn = document.getElementById("resultBtn");            //结果输出按钮
      var inputnum = document.getElementById("number");        //数字输入框
      var resultlbl =document.getElementsByTagName("label");    //结果显示的label 
      var i,j,temp;
  
     //冒泡排序
      var bubble = function(arr){
          for(i=0;i<9;i++){
             for(j=0;j<9-i;j++){
                 if(arr[j] > arr[j+1]){
                     temp = arr[j];
                     arr[j] = arr[j+1];
                     arr[j+1] = temp;
                 }
             }
         }
         return arr;
     }
 
     //插入排序
     var insersort = function(arr){
         for(i=1;i<10;i++){
             temp = arr[i];
             j = i;
             while(j > 0 && arr[j-1] > temp){
                 arr[j] = arr[j-1];
                 j--;
             }
             arr[j] = temp;
         }
         return arr;
     }
 
     //快速排序
     var quicksort = function(arr){
         var basenum,basenumIndex;
         var left = [];
         var right = [];
 
         if(arr.length <= 1){
             return arr;
         }
         //基准数的位置
         basenumIndex = Math.floor(arr.length/2);
         basenum = arr.splice(basenumIndex,1)[0];
         for(i=0;i<arr.length;i++){
             if(arr[i] < basenum){
                 left.push(arr[i]);
             }
             else{
                 right.push(arr[i]);
             }
         }
         //递归调用
         return quicksort(left).concat([basenum],quicksort(right));
     }
 
     //判断输入的值类型是否为数字
     function isNum(num){
        var reNum =/^[0-9]+$/;
        return (reNum.test(num));
     }
 
     //按钮点击事件
     btn.onclick = function(){
         //判断输入的值的类型和长度以及是否为空
         if(!isNum(inputnum.value) || inputnum.value == "" || inputnum.value.length > 10 || inputnum.value.length < 10){
             resultlbl[0].innerHTML = "Your format is wrong![Must Be 10 numbers]";
             resultlbl[0].style.color = "red";
         }
         else{
             resultlbl[0].innerHTML = "After Sorted:";
             resultlbl[0].style.color = "black";
             var inputstream = inputnum.value.toString();    //将输入的内容转换为字符串
             var data = inputstream.split("");                //将转换的字符串分割，相当于转化为数组
             
             //结果输出
             resultlbl[1].innerHTML = "BubbleSort:" + "<br/>" + bubble(data);
             resultlbl[2].innerHTML = "InsertSort:" + "<br/>" + insersort(data);
             resultlbl[3].innerHTML = "QuickSort:" + "<br/>" + quicksort(data);
         }
     }
 }
</script>
<style type="text/css">
 *{
     margin: 0;
      padding: 0;
      list-style: none;
  }
  .container{
      width: 400px;
     margin: 100px auto;
  }
 input[type="text"]{
     display: block;
     width: 400px;
     height: 40px;
     text-align: center;
     line-height: 40px;
     outline: none;
     font-size: 14px;
     border-radius: 15px;
     border: 1px solid #aaaaaa;
 }
 .sortbtn{
     display: block;
     width: 200px;
     height: 34px;
     text-align: center;     line-height: 34px;
     border: 1px solid black;
     border-radius: 10px;
     text-decoration: none;
     color: black;
     margin-left: 100px;
     margin-top: 30px;
 }
 .sortbtn:hover{
     display: block;
     background-color: black;
     color: #ffffff;
 }
 label{
     display: block;
     width: 200px;
     text-align: center;
     margin-left: 100px;
     margin-top: 20px;
     font-size: 20px;
 }
</style>
<body>
<div class="container">
         <input type="text" name="number" id="number" placeholder="Please enter 10 numbers(don't leave space)" />
         <a href="javascript:void()" class="sortbtn" id="resultBtn">Sort</a>
         <label class="title">After Sorted:</label>

         <!--以下三个label分别显示冒泡，插入，快速排序的结果-->
         <label class="result" for="bubblesort"></label>
         <label class="result" for="insertsort"></label>
         <label class="result" for="quicksort"></label>
     </div>
</body>
</html>